Web Intell. Agent Syst.最新文献_第7页

Emotion Sensitive News Agent (ESNA): A system for user centric emotion sensing from the news 情感敏感新闻代理(ESNA):一种以用户为中心的新闻情感感知系统

Web Intell. Agent Syst. Pub Date : 2010-12-01 DOI: 10.3233/WIA-2010-0198

S. Masum, H. Prendinger, M. Ishizuka

{"title":"Emotion Sensitive News Agent (ESNA): A system for user centric emotion sensing from the news","authors":"S. Masum, H. Prendinger, M. Ishizuka","doi":"10.3233/WIA-2010-0198","DOIUrl":"https://doi.org/10.3233/WIA-2010-0198","url":null,"abstract":"News is an interesting application domain for “emotion sensing”, since readers often have a personal attitude or subjective opinion regarding certain events or entities reported about. Hence the ability to determine user-centric emotion on a given topic or entity is of critical interest. This paper describes a system called Emotion Sensitive News Agent (ESNA). By employing several RSS news feeds chosen by the user, ESNA has been developed as a news aggregator to fetch news, and to categorize the themes of the collected news into eight emotional affinities, thereby taking into consideration of the user's preference profile. A user study has been conducted, which indicates that the system is conceived as intelligent and interesting as an affective interface. ESNA exemplifies a recent research agenda that aims at recognizing affective information conveyed through texts. Different approaches have already been employed to “sense” emotion from text. The novelty of the approach mentioned here is threefold: affective information conveyed through text is analyzed (1) by using a rule based approach to assign a numerical valence (i.e., a positive or negative value to indicate positive or negative sentiment of the input) instead of a machine learning approach, (2) by considering the cognitive and appraisal structure of emotions, and (3) by taking into account user preferences.","PeriodicalId":263450,"journal":{"name":"Web Intell. Agent Syst.","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130881272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Fluctuated peer selection policy and its performance in large-scale multi-agent systems 大规模多智能体系统中的波动同伴选择策略及其性能

Web Intell. Agent Syst. Pub Date : 2010-08-01 DOI: 10.3233/WIA-2010-0190

T. Sugawara, K. Fukuda, Toshio Hirotsu, Shin-ya Sato, Osamu Akashi, S. Kurihara

{"title":"Fluctuated peer selection policy and its performance in large-scale multi-agent systems","authors":"T. Sugawara, K. Fukuda, Toshio Hirotsu, Shin-ya Sato, Osamu Akashi, S. Kurihara","doi":"10.3233/WIA-2010-0190","DOIUrl":"https://doi.org/10.3233/WIA-2010-0190","url":null,"abstract":"This paper describes how, in large-scale multi-agent systems, each agent's adaptive selection of peer agents for collaborative tasks affects the overall performance and how this performance varies with the workload of the system and with fluctuations in the agents' peer selection policies (PSP). An intelligent agent in a multi-agent system (MAS) often has to select appropriate agents to assign tasks that cannot be executed locally. These collaborating agents are usually chosen according to their skills. However, if multiple candidate peer agents still remain a more efficient agent is preferable. Of course, its efficiency is affected by the agent' workload and CPU performance and the available communication bandwidth. Unfortunately, as no agent in an open environment such as the Internet can obtain such data from any other agent, this selection must be done according to the available local information about the other known agents. However, this information is limited, usually uncertain and often obsolete. Agents' states may also change over time, so the PSP must be adaptive to some extent. We investigated how the overall performance of MAS would change under adaptive policies in which agents selects peer agents using statistical/reinforcement learning. We particularly focused on mutual interference for selection under different workloads, that is, underloaded, near-critical, and overloaded situations. This paper presents simulation results and shows that the overall performance of MAS highly depends on the workload. It is shown that when agents' workloads are near the limit of theoretical total capability, a greedy PSP degrades the overall performance, even after a sufficient learning time, but that a PSP with a little fluctuation, called fluctuated PSP, can considerably improve it. \u0000 \u0000This paper is the revised and extended version of our conference papers [21] and [22].","PeriodicalId":263450,"journal":{"name":"Web Intell. Agent Syst.","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114597154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A knowledge-based model using ontologies for personalized web information gathering 一个基于知识的模型，使用本体进行个性化的web信息收集

Web Intell. Agent Syst. Pub Date : 2010-08-01 DOI: 10.3233/WIA-2010-0189

Xiaohui Tao, Yuefeng Li, N. Zhong

引用次数: 18

A multiagent architecture for controlling the Palamede satellite 用于控制Palamede卫星的多智能体体系结构

Web Intell. Agent Syst. Pub Date : 2010-08-01 DOI: 10.3233/WIA-2010-0191

F. Amigoni, Stefano Gualandi, D. Menotti, G. Sangiovanni

{"title":"A multiagent architecture for controlling the Palamede satellite","authors":"F. Amigoni, Stefano Gualandi, D. Menotti, G. Sangiovanni","doi":"10.3233/WIA-2010-0191","DOIUrl":"https://doi.org/10.3233/WIA-2010-0191","url":null,"abstract":"The fundamental role of autonomous agents in managing activities of space systems has emerged some years ago with the NASA's Remote Agent Experiment. However, the possible advantages of employing multiple agents to manage activities on a single space system are largely unexplored. This paper gives a contribution in this direction by presenting the design and the experimental validation of a multiagent architecture intended to run onboard a space satellite. Each agent is associated to a subsystem of the satellite and manages its activities. Each agent is organized in three modules, or layers: a planner, a scheduler, and an executor. Taken together across the agents, these layers form a distributed planner, a distributed scheduler, and a distributed executor, respectively. With a multiagent architecture, a number of benefits, including robustness, easy reuse of agents, and the possibility for the designer to focus on a small portion of the problem at a time, can be exploited. We experimentally validated our system in the scenario provided by Palamede, a low Earth orbit satellite under development at the Department of Aerospace Engineering of the Politecnico di Milano.","PeriodicalId":263450,"journal":{"name":"Web Intell. Agent Syst.","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134317624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Model identification in interactive influence diagrams using mutual information 使用互信息的交互影响图中的模型识别

Web Intell. Agent Syst. Pub Date : 2010-08-01 DOI: 10.3233/WIA-2010-0194

Yifeng Zeng, Prashant Doshi

引用次数: 2

HITS algorithm improvement using semantic text portion 使用语义文本部分改进HITS算法

Web Intell. Agent Syst. Pub Date : 2010-04-01 DOI: 10.3233/WIA-2010-0184

Bui Quang Hung, Masanori Otsubo, Y. Hijikata, S. Nishida

引用次数: 14

Anonymity services for multi-agent systems 多代理系统的匿名服务

Web Intell. Agent Syst. Pub Date : 2010-04-01 DOI: 10.3233/WIA-2010-0188

M. Warnier, F. Brazier

引用次数: 10

Application of rough ensemble classifier to web services categorization and focused crawling 粗糙集成分类器在web服务分类和集中爬行中的应用

Web Intell. Agent Syst. Pub Date : 2010-04-01 DOI: 10.3233/WIA-2010-0186

S. Saha, C. A. Murthy, S. Pal

引用次数: 4

Incentivizing connectivity in structured Peer-to-Peer systems 激励结构化点对点系统中的连接

Web Intell. Agent Syst. Pub Date : 2010-04-01 DOI: 10.3233/WIA-2010-0183

Björn-Oliver Hartmann, Klemens Böhm, Andranik Khachatryan, Stephan Schosser, B. Vogt

{"title":"Incentivizing connectivity in structured Peer-to-Peer systems","authors":"Björn-Oliver Hartmann, Klemens Böhm, Andranik Khachatryan, Stephan Schosser, B. Vogt","doi":"10.3233/WIA-2010-0183","DOIUrl":"https://doi.org/10.3233/WIA-2010-0183","url":null,"abstract":"Peer-to-Peer systems (P2P systems) have received much attention both in research and in practice. P2P systems consist of autonomous entities, as peers are software artifacts chosen and controlled by humans, or they may be humans themselves, as in social networks. Thus, a peer can choose (a) its action-selection strategy, i.e., how it deals with queries on behalf of others, and (b) its link-selection strategy. In so-called structured P2P systems, a peer typically does not interact directly with another one on the application level, but forwards its queries via intermediate peers. Peers in P2P systems expect some benefit from participating. In particular, they benefit if the system is efficient, i.e., if the payoff of all participants is maximal. Since maintaining contacts incurs costs, having only few contacts is attractive. Consequently, we expect some peers to be deliberately poorly connected (dpc): They hardly have any contacts and hence low maintenance costs. Still, a dpc peer benefits from the network structure, since other peers forward its queries via their contacts. In other words, dpc is a new kind of free riding behavior, namely on the contact level (as opposed to free riding on the action level). Since, from a global perspective, a lower degree of connectivity and a higher forwarding load than necessary result, dpc reduces efficiency. In this article we introduce a formal model to show that in many situations dpc indeed leads to a higher payoff than having many links, i.e., cooperation. Further, we show by means of an economic experiment that humans actually do resort to dpc in network-formation situations. To deal with this situation, we propose an incentive mechanism against dpc. The idea is that participants are more cooperative against peers which obviously are not dpc, compared to other peers. We show the effectiveness of our mechanism with a formal analysis.","PeriodicalId":263450,"journal":{"name":"Web Intell. Agent Syst.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121147977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Information security underlying transparent computing: Impacts, visions and challenges 透明计算背后的信息安全:影响、愿景和挑战

Web Intell. Agent Syst. Pub Date : 2010-04-01 DOI: 10.3233/WIA-2010-0187

Yaoxue Zhang, L. Yang, Yuezhi Zhou, Wenyuan Kuang

{"title":"Information security underlying transparent computing: Impacts, visions and challenges","authors":"Yaoxue Zhang, L. Yang, Yuezhi Zhou, Wenyuan Kuang","doi":"10.3233/WIA-2010-0187","DOIUrl":"https://doi.org/10.3233/WIA-2010-0187","url":null,"abstract":"The rapid development of computer network technologies and social informationalization has brought many new opportunities and challenges in information security. With improved information and service sharing enjoyed by more and more people, how to strengthen the information security has become an increasingly critical issue. In this paper, we propose a new network security mechanism based on a novel computing paradigm, i.e., transparent computing, which is based on the extended von Neumann architecture. This paradigm separates the program storage and execution, which is implemented in the network environment. It is realized by a new generation server and client BIOS, namely EFI BIOS, and coordinated with the MetaOS management platform and related switching and input/ouput devices of transparent computing. Through the interface between hardware and software, it conducts effective control, monitoring and management of data and instructions in a block-streaming way for the operating system and the application programs above it. At the same time, it adopts a security protection mechanism to prevent and remove prevalent malicious software such as worm and Trojan horse. Several demonstrated examples are described in detail to illustrate the attractive and promising security features and advantages.","PeriodicalId":263450,"journal":{"name":"Web Intell. Agent Syst.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129179228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19